New Dolichopodidae in the Fauna of Denmark (Diptera)

New Dolichopodidae in the fauna of Denmark (Diptera)

Igor Grichanov

Grichanov, 1.: New Dolichopodidae in the fauna of Denmark (Diptera). Ent. Meddr 78: 43-51. Copenhagen, Denmark 2010. ISSN 0013-8851.

Examination of unsorted material ofDolichopodidae deposited in the Natural History Museum of Denmark in Copenhagen and the Natural History Mu seum in Arhus has resulted in the finding of 10 species new to Denmark. The species are illustrated, and notes on their global distribution are given. Sciapus contristans (Wiedemann, 1817) is excluded from the Danish fauna.

Dansk sammendrag Gennemgang afubestemt materiale afDolichopodidae fra Statens Naturhisto riske Museum i K0benhavn og Naturhistorisk Museum i Arhus gav som resultat 10 nye arter for Danmark. Arterne er illustreret og deres globale udbredelse angives. Sciapus contristans (Wiedemann, 1817) ekskluderes fra den danske li ste.

Igor Grichanov, All-Russian Institute of Plant Protection, Podbelskogo 3, St. Petersburg, Pushkin, 196608 Russia (E-mail: [email protected]).

Introduction Long-legged flies (family Dolichopodidae) are delicate, small to medium-sized, usually greenish flies. The Dolichopodidae fauna of the world is very large, with approximately 7300 extant and nearly 100 fossil described species (Grichanov, 2003-2010). These mostly predatory flies are distributed throughout the world including the tropics and high-latitude islands and territories. In Denmark adults and larvae of almost all species of long-legged flies are predators inhabiting moist substrata. The Danish dolichopodid fauna was listed recently by Pallet & Petersen (2001), and since then MacGowan (2005) has added two more species to the fauna. Examination of unsorted material of Dolichopodidae deposited in the Natural History Museum of Denmark (ZMUC) in Copenhagen and the Natural History Museum (NHMA) in Arhus revealed 10 species new to Denmark. Most of these have previously been included in the Danish list (Pallet & Petersen 2001) as likely to occur in the country based on an expert opinion. Including the new data presented in this paper, the Danish fauna of Dolichopodidae now numbers 209 species. In the late fall of 2009, all the unsorted material of Dolichopodidae in the Danish collections stored at the Natural History Museum of Denmark and the Natural History Museum in Arhus was identified by the author. About 2000 unsorted specimens from all parts of Denmark were identified to species, and new localities for 110 Danish doli chopodid species were recorded. This paper presents the new records in detail and provides additional information in the form of remarks and notes on the known distribution for each species. The known global distribution of species is given after Grichanov (2003-2010).

Ent. Meddr 78, I -2010 43 Fig. 1: Dolichopus signifer Haliday, 1832.

Abbreviations for geographical divisions: B = Bornholm EJ =East Jutland LFM = Lolland, Falster, M0n NEZ =North East Zealand SZ =South Zealand WJ =West Jutland

The species new to Denmark

Genus Dolichopus Latreille, 1796

Dolichopus signifer Haliday, 1832 (Fig. 1)

Material examined: 1 o, NEZ: UB49, Rude Skov, Fems0lyng, 6.VI.1964, W. Buch leg.; 3 oo , B: Nex0 Strand, 2.VII.2002, Lars Trolle [ZMUC] . Recorded from Denmark for the first time.

Distribution. This species is known mainly from the southern parts of the Palaearctic Re gion, but reaching southern Scandinavia in Europe. It has been recorded from Mghani stan, Armenia, Austria, Azerbaijan, Azores, Belgium, Bulgaria, Czechia, Finland, France, Germany, Georgia, Greece, Hungary, Ireland, Italy, Kazakhstan, Morocco, Netherlands, Norway, Poland, Romania, Russia (Kabardino-Balkaria, Krasnodar, Rostov, Voronezh), Slovakia, Spain, Sweden, Switzerland, Tajikistan, Turkey, Turkmenistan, United Kingdom, Ukraine (Crimea, Odessa) and Uzbekistan.

44 Ent. Meddr 78, 1 - 20 I 0 Fig. 2. Hercostornus fulvicaudis (Haliday, 1851).

Genus Hercostomus Loew, 1857

Hercostomus fulvicaudis (Haliday, 1851) (Fig. 2)

Material examined: 3 oo, LFM: M0ns KJint, 17.VII.1918; 1 <:;> , SZ: Ringsted, 3l.VII.1910 [Axe! Petersen coli?] [NHMA]. Recorded from Denmark for the first time.

Distribution. Austria, Belgium, Czechia, Estonia, France, Germany, United Kingdom, Hungary, Netherlands, Poland, Romania, Russia (Voronezh, Lipetsk), Slovakia, Sweden, Ukraine (Kherson, Odessa, Uzhhorod), Turkmenistan, Tajikistan and China.

Genus Medetera Fischer von Waldheim, 1819

Medetera jugalis Collin, 1941 (Fig. 3)

Material examined: 1 o, LFM: PF55, R0dbyhavn, 17.V111.2005,J. Pedersen leg. [ZMUC]. Recorded from Denmark for the first time.

Distribution. Widely distributed in central and northern Europe, recorded once from Siberia. Recorded from Belgium, Czechia, Estonia, Finland, France, Germany, Hungary, Netherlands, Norway, Russia (Buryatia), Slovakia, Sweden and United Kingdom.

Ent. Meddr 78, I - 20 I 0 45 Fig. 3. Medetera jugalis Collin, 1941.

Genus Orthoceratium Schrank, 1803

Orthoceratium lacustre (Scopoli, 1763) (Fig. 4)

Material examined: 1 (; , 1 ~ , ~: Ag 28, Skallingen, mars ken [ = the marsh], med [io]. VII.1978, Eric Rald leg. [ZMUC]. Recorded from Denmark for the first time.

Distribution. The species is confined to a coastal band along western Europe and the Medi terranean, being also recorded from the coasts of the Caspian Sea in the Caucasus and at

Fig. 4: Orthoceratium lacustre (Scopoli, 1763).

46 Ent. Meddr 78, I -2010 the Indian Ocean coast in East Africa. In Azerbaijan, it reaches the foothills of the Talysh Mountains. Palaearctic: Algeria, Austria, Azerbaijan, Belgium, Bulgaria, Cyprus, Finland, France, Germany, Greece, Ireland, ?Israel, Italy, Madeira, Netherlands, Portugal, Spain, Tunisia, Ukraine (Crimea), United Kingdom and "Yugoslavia"; Afrotropical: Tanzania.

Genus Rhaphium Meigen, 1803

Rhaphiumfissum Loew, 1850 (Fig. 5)

Material examined: 1 c3' , LFM: Egebjerg, 20.V.1914 [Axe! Petersen coil.] [NHMA] . Recorded from Denmark for the first time.

Distribution. It is known from Austria, Czechia, Estonia, France, Georgia, Germany, Greece, Hungary, Italy, Norway, Ireland, Netherlands, Poland, Romania, Russia (St Petersburg env., Baikal), Slovakia, Spain, Sweden, Switzerland, "Yugoslavia", Tajikistan and Korea.

Genus Sciapus Zeller, 1842

Remark. Lundbeck (1912) noted that Sciapus contristans was taken at many localities in Denmark and suggested that S. zonatulus is a synonym of the former. Meuffels & Groot aert ( 1990) published new species concepts of sister- but apparently different- species of contristans group, raised S. zonatulus from synonymy and described a new species S. basilicus. Marc Pollet (Petersen & Pollet, 2001) re-identified the ZMUC collection of Dolichopodidae and associated almost all the material of the contristans group with S. maritimus Becker, 1918. There was not any S. zonatulus specimen found. Only one male

Fig. 5. RhaphiumfissumLoew, 1850.

Ent. Meddr 78, I - 20 10 47 / / 2mm Fig. 6: Sciapus jlavicinctus (Loew, 1857). and two females were placed under the label S. contristans. I have examined this series, collected at one locality, and found that the specimens belong to S. basilicus. I have examined also all specimens standing under the label S. contristans in the NMHA and found no specimen of this species. It is worth noting that S. contristans sensu Meuffels & Grootaert was earlier excluded from the fauna of Finland and Sweden (Grichanov, 2006), being also extremely rare in Schleswig-Holstein (Hans Meyer, pers. comm. 2009), from where it was originally described. So, in this paper S. contristans is finally excluded from the Danish fauna, but with S. zonatulus and S. basilicus added instead. All these species are reliably distinguished by male genitalia only (see figures in Meuffels & Grootaert, 1990).

Sciapus basilicus Meuffels & Grootaert, 1990

Material examined: 1 CS , 2 ~ ~ , SZ: Fakse Ladeplads, 16-17 ,VII.l912 I coil. W. Lundbeck [ZMUC] ; 1 CS , SJ: Villebol, 25.VII.l918 [coli?] [NHMA] . Recorded from Denmark for the first time.

Distribution. Austria, Finland, Germany, Netherlands, Norway, Romania, Sweden, Swit zerland and United Kingdom.

Sciapus zonatulus (Zetterstedt, 1843)

Material examined: 1 CS, EJ: PH58, Anholt, Nordbjerg, 2.VII.2003, leg. R. Bygebjerg [NHMA]. Recorded from Denmark for the first time.

Distribution. Belgium, Finland, Germany, Netherlands, Poland, Spain, Sweden, Switzer land and United Kingdom. A rather common species in some countries, and many old European records of S. contristans must be referred to this species.

48 Ent. Meddr 78. 1-2010 Fig. 7. Syntormon fuscipes (von Roser, 1840) .

Sciapus Jlavicinctus (Loew, 1857) (Fig. 6)

Material examined: l CS , NEZ: UB49, Rude Skov, Fems0lyng, 6.VI.l964, W. Buch leg. [ZMUC] . Recorded from Denmark for the first time.

Distribution. Rare species throughout its distribution. Recorded from Azerbaijan, Bulgaria, France, Germany, Greece, Hungary, Italy, ?Israel, Romania; Russia (Krasnodar), Slovakia and Turkey. This is the first record of the species from northern Europe.

Genus Syntormon Loew, 1857

Syntormonfuscipes (von Roser, 1840) (Fig. 7)

Material examined: 1 CS , SZ: &ere have, l9.IV.l914 [Axel Petersen coll?] [NHMA]. Recorded from Denmark for the first time.

Distribution. Palaearctic: Andorra, Austria, Belgium, Bulgaria, Czechia, France, Greece, Germany, Hungary, Netherlands, Poland, Romania, Russia (Krasnodar), Ukraine (Cri mea), Slovakia, Spain, Sweden, Turkey, United Kingdom, "Yugoslavia"; Afrotropical: Burundi and Kenya.

Em. Mcddc 78, I - 20 I 0 49 Fig. 8. Thrypticus pollinosus Verrall, 1912.

Genus Thrypticus Gerstacker, 1864

Thrypticus pollinosus Verrall, 1912 (Fig. 8)

Material examined: 1 o, SJ: Ribe A [=river] 8.Vlll.1918 [coil?] [NHMA]. Recorded from Denmark for the first time.

Distribution. Finland, France, Germany, Netherlands, Russia (Karelia, St Petersburg env.) , Sweden, United Kingdom and China.

Discussion About 400 dolichopodid species are registered from northern Europe (Grichanov, 2006) and 275 in Schleswig-Holstein State of Germany (Meyer, 2009). How complete is our knowledge of the Danish fauna? The number of Swedish species is about 330 (Grichanov & Viklund, 2007) , i.e., substantially larger than the about 240 species known from Finland (Kahanpaa & Grichanov, 2006) and the 209 from Denmark. Taking into consideration country areas, Schleswig-Holstein ( 17.4 spp. per 1000 sq.km) and Denmark ( 4.8 spp. per 1000 sq.km) are at the top with the highest indices, whereas Sweden and Finland each has only 0. 7 species. I think a gradual decrease of biodiversity per unit area northward and eastward is an objective trend in northern Europe. Pallet & Petersen (2001) estimated that the number of Danish species could reach 297. The country is flat with little eleva tion, naturally covered with mixed deciduous forests. It is rather similar by elevation and phytogeography to Schleswig-Holstein that has been intensively collected by dipterists for more than two centuries and especially during the last decades. Therefore, the Dan ish fauna of long-legged flies probably equals or will slightly exceed that of Schleswig Holstein State. It is worth noting that of the 10 newly recorded species mentioned in this paper, only Dolichopus signiferhas not been found in neighbouring Schleswig-Holstein (S. zonatulus and S. basilicus were probably misidentified, being yet absent in the State list) .

50 Ent. Mcddr 78, 1-2010 Acknowledgements The work in the ZMUC has been supported by the IAMONET-RU programme. I am greatly indebted to Dr. Thomas Pape (ZMUC) and S0ren Tolsgaard (NHMA) for their kindness in giving the opportunity to study the collections of their Museums with valuable support by their collaborators.

References Grichanov, I. Ya., 2003-2010. A checklist of species of the family Dolichopodidae (Diptera) of the World arranged by alphabetic list of generic names. Http:/ /grichanov.fortunecity.com/ Genera3.htm. Grichanov, I. Ya., 2006. A checklist and keys to North European genera and species of Dolichopodidae (Diptera). St.Petersburg: VIZR RAAS. 120 pp. Grichanov, I. Ya. & Viklund, B., 2007. Dolichopodidae (Diptera) new to the fauna of Sweden. International Journal ofDipterological Research 18(2): 113-118. Kahanpiiii, J. & Grichanov, I., 2006. Dolichopodidae (Diptera) new for the fauna of Finland. Entomologica Fennica 17(2): 73-78. Lundbeck, W., 1912. DipteraDanica. Genera and species offlies hitherto found in Denmark. Part 4, Doli chopodidae. Gad, Copenhagen, 414 pp. MacGowan, I., 2005. New records of saproxylic Diptera from Denmark. Entomologiske Meddelelser 73 (1): 63-66. Meuffels, H. & Grootaert, P., 1990. The identity of Sciapus contristans (Wiedemann, 1817) (Dolicho podidae, Diptera), and a revision of the species group of its relatives. Bulletin van het Koninklijk Belgisch Instituut voor Natuurwetenscheppen, Entomologie 60: 161-178. Meyer, H., 2009. Bestandsaufnahme und Bibliographie der Langbein-, Tanz- und Rennraubflie gen Schleswig-Holsteins mit Angaben zur Okologie ausgewiihlter Arten (Dipter

Ent. Meddr 78, I- 2010 51